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Sprag

sprag.ai

From $0.70/mo Free plan WebAPISelf-hosted
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Spec score 8.6 #52 of 233 in Text-to-speech tools

Spec sheet

Product
Sprag offers native speech-to-speech agents and an STT-to-LLM-to-TTS voice pipeline through one API.Read 7 Oct 2026 · sprag.ai
Audience
Sprag says its products and services are intended for developers aged 16 and older.Read 7 Oct 2026 · sprag.ai
Platforms
web,apiRead 20 Sep 2026 · sprag.ai
Free plan
NoRead 20 Sep 2026 · sprag.ai
Integrations
Sprag documents integration with Pipecat using its OpenAI services and lists LiveKit in its integrations navigation.Read 7 Oct 2026 · sprag.ai
Support
The pricing page directs users with questions about account costs, billing, rate limits, enterprise agreements, and metering to contact Sprag.Read 7 Oct 2026 · sprag.ai
API access
YesRead 20 Sep 2026 · sprag.ai
API compatibility
Sprag serves speech models through an OpenAI-shaped HTTP API, and existing clients can point to it by changing the base URL and API key.Read 7 Oct 2026 · sprag.ai
Captioning
Symphony Notes describes audio clips, including speech, speakers, emotion, and background sound.Read 7 Oct 2026 · sprag.ai
Enterprise
The pricing page says users can contact Sprag for an organization account for enterprise use.Read 7 Oct 2026 · sprag.ai
Export formats
mp3,opus,aac,flac,wav,pcmRead 20 Sep 2026 · sprag.ai
Languages
10Read 20 Sep 2026 · sprag.ai
Limit
The pricing page says realtime sessions bill at 25% above batch rates for Rhythm and Symphony, while speech output costs the same either way.Read 7 Oct 2026 · sprag.ai
Privacy and security
Sprag says data is stored in its cloud infrastructure, transfers use HTTPS/TLS, and payment card details are processed by Stripe rather than stored on its systems.Read 7 Oct 2026 · sprag.ai
Privacy controls
Sprag says it does not sell personal information and provides California residents an opt-out for advertising-measurement cookies that may constitute sharing.Read 7 Oct 2026 · sprag.ai
Realtime agents
Symphony supports realtime tool calling and natural interruptions and turn-taking.Read 7 Oct 2026 · sprag.ai
Self-hosting
The homepage links to a self-hosted deployment option.Read 7 Oct 2026 · sprag.ai
Speech recognition
Rhythm transcribes audio in 30 languages and supports streaming and batch use.Read 7 Oct 2026 · sprag.ai
Speech synthesis
Chorus synthesizes speech using a built-in, cloned, or designed voice.Read 7 Oct 2026 · sprag.ai
Voice cloning
YesRead 20 Sep 2026 · sprag.ai

Plans and prices

Chorus $0.70 a month $0.70 per hour of speech generated; also listed as $19.44 per 1M audio tokens Stock-voice text-to-speech Read 20 Sep 2026 · sprag.ai
Chorus Design $15 a month Designs new voices from a text prompt Read 20 Sep 2026 · sprag.ai
Chorus Clone $4.50 a month Plus $1.00 per hour of input audio Clones a voice from a short reference Read 20 Sep 2026 · sprag.ai
Symphony Notes Free $0.0019/ minute Audio captioning · + $2.03 per 1M output tokens Read 7 Oct 2026 · sprag.ai
Rhythm $0.08, paid once $0.075/ hour of audio submitted; batch rate Streaming and batch · realtime sessions cost 25% over batch rates Read 7 Oct 2026 · sprag.ai
Symphony $0.09, paid once $0.09/ hour of audio; batch rate Text, image, audio, and video in · text and speech out · tool calling · realtime sessions cost 25% over batch rates Read 7 Oct 2026 · sprag.ai
Chorus — built-in voice $0.70, paid once $0.70/ hour of speech generated Built-in voices · $19.44 per 1M audio tokens Read 7 Oct 2026 · sprag.ai
Chorus — cloned voice $4.50, paid once $4.50/ 1M characters $0.27 per hour of speech · + $1.00 per hour of reference audio Read 7 Oct 2026 · sprag.ai
Chorus — designed voice $15, paid once $15.00/ 1M characters Voice design Read 7 Oct 2026 · sprag.ai

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